Java Backend Developer - Microservices & Reactivity
Resume:
Sowjanya A
***********@*****.***
Java Backend Developer with over 5 + years of Experience. Developed backend applications using Java, Spring Boot, Kotlin, Hibernate, and RESTful APIs for enterprise systems.
Experienced in building reactive, event-driven microservices and RESTful APIs for high-performance distributed systems.
Strong expertise in Microservices architecture, Spring Framework, Hibernate, Spring Data JPA, and REST API development.
Hands-on experience with Apache Maven, Jenkins, Docker, Kubernetes, and CI/CD pipeline automation.
Proficient in working with Cassandra, PostgreSQL, Oracle, and MongoDB for scalable data management.
Experienced in implementing asynchronous and non-blocking applications using Project Reactor.
Skilled in JUnit, Mockito, Cucumber, REST Assured, and API testing to ensure high application quality.
Familiar with Splunk and AppDynamics for application monitoring, logging, and performance troubleshooting.
Strong knowledge of Git, Agile Scrum, code reviews, and software development best practices.
Excellent analytical, problem-solving, and communication skills with experience working in cross-functional Agile teams.
TECHNICAL SKILLS
Programming Languages: Java (8/11/17), JavaScript (ES6+), TypeScript, SQL
Frontend Technologies: React.js, React Native, HTML5, CSS3, Bootstrap, Material UI, Redux, Context API
Backend Technologies: Spring Boot, Spring MVC, Spring Security, Hibernate, Spring Data JPA, RESTful APIs, Microservices
Databases: PostgreSQL, MySQL, MongoDB
API & Integration: REST APIs, JSON, Axios, Third-Party API Integration
Cloud & DevOps: AWS (EC2, S3, RDS), Docker, Jenkins, GitHub Actions
Version Control & Build Tools: Git, GitHub, Maven, Gradle
Testing: JUnit, Mockito, Jest, React Testing Library
Development Tools: IntelliJ IDEA, Visual Studio Code, Postman
Methodologies: Agile (Scrum), SDLC, Jira, Confluence
Operating Systems: Windows, Linux, macOS
CERTIFICATION
AWS Certified Solutions Architect – Associate (SAA-C03)
WORK EXPERIENCE
Java Full Stack Developer Optum, USA [Sep-2025] – Present
Developed and maintained scalable microservices using Java, Spring Boot, and REST APIs to support high-volume enterprise applications.
Designed, developed, and maintained scalable backend services using Java 17, Spring Boot, and Kotlin for high-volume enterprise applications.
Developed scalable backend services using Java 17, Spring Boot, Spring WebFlux, and Spring Reactor.
Designed and implemented reactive microservices following event-driven architecture principles.
Developed RESTful APIs for enterprise healthcare applications with secure JSON-based communication.
Built non-blocking asynchronous services using Project Reactor (Mono and Flux).
Integrated backend services with Cassandra, PostgreSQL, Oracle, and MongoDB.
Optimized application performance using reactive programming techniques.
Built and maintained CI/CD pipelines using Maven, Jenkins, Docker, and Kubernetes.
Containerized applications using Docker and deployed services to Kubernetes clusters.
Developed automated test cases using JUnit, Mockito, REST Assured, and Cucumber.
Monitored production applications using Splunk and AppDynamics.
Participated in Agile ceremonies, sprint planning, backlog grooming, and code reviews.
Resolved production issues and performed root cause analysis for critical incidents.
Collaborated with DevOps teams to deploy backend services on AWS (EC2, S3, RDS, Lambda, ECS) using containerized environments.
Participated in Agile ceremonies using JIRA, including sprint planning, backlog grooming, estimation, and retrospectives.
Troubleshot production issues, performed root cause analysis, and implemented long-term fixes to improve system stability.
Contributed to AI-enabled backend services by integrating LLM-based APIs and Agentic AI workflows into enterprise applications.
Mentored junior developers through code reviews, technical guidance, and adoption of backend engineering best practices.
Contributed to application modernization initiatives by migrating legacy services to Spring Boot microservices deployed on AWS.
Supported production deployments, monitored application health, investigated issues, and resolved incidents to maintain system reliability.
Java Backend Developer CGI, USA [Feb-2024] – [Aug-2025]
Developed enterprise web applications using Java, Spring Boot, React.js, and PostgreSQL.
Developed backend applications using Java, Spring Boot, Kotlin, Hibernate, and RESTful APIs for enterprise systems.
Designed secure REST APIs and integrated them with frontend applications using JSON-based communication.
Developed business logic following object-oriented programming principles and microservices architecture.
Developed enterprise backend applications using Java 17, Spring Boot, and Microservices.
Built REST APIs using Spring Boot and Hibernate following REST standards.
Developed asynchronous APIs using Spring WebFlux and Project Reactor.
Worked with Cassandra, PostgreSQL, and Oracle databases.
Used Maven for dependency management and project builds.
Automated deployments using Jenkins CI/CD pipelines.
Developed and deployed containerized applications using Docker and Kubernetes.
Wrote unit and integration tests using JUnit, Mockito, and Cucumber.
Used Splunk for log analysis and AppDynamics for application performance monitoring.
Collaborated with cross-functional Agile teams and participated in peer code reviews.
Supported production deployments and resolved performance bottlenecks.
Worked with Oracle/PostgreSQL databases for schema design, SQL optimization, and transaction management.
Managed source code using Git, implementing branching and merge strategies in collaborative development.
Built CI/CD pipelines using Jenkins, Maven, Docker, and Git to automate application deployment.
Created automated API test cases using REST Assured and JUnit, improving application quality.
Participated in Agile development using JIRA, collaborating with developers, QA, and product owners.
Supported backend deployments on AWS cloud and monitored application performance.
Performed peer code reviews and enforced coding standards to improve software quality.
Used Git, Maven, Jenkins, and Docker throughout the SDLC.
Java Backend Developer Experion Technologies, India [Jan-2022] – [June-2023]
Developed backend modules using Java, Spring Boot, Spring MVC, and Hibernate for enterprise applications.
Built responsive frontend pages using React.js, HTML5, CSS3, and JavaScript.
Developed RESTful web services and integrated them with React-based user interfaces.
Assisted in implementing reusable UI components using React functional components and Hooks.
Worked with MySQL/PostgreSQL for database design, query optimization, and data persistence.
Integrated third-party APIs to support business workflows and improve application functionality.
Participated in debugging, testing, and resolving application defects across frontend and backend.
Collaborated in Agile teams using Jira and Git for sprint planning and version control.
Maintained technical documentation and ensured adherence to coding standards.
Supported production deployments and troubleshooting activities.
Education Details
Master of Science in Information Systems Indiana Tech, Fort Wayne, USA [Aug 2023 – Mar 2025]
Bachelor of Science in Computer Science Osmania University, Hyderabad, India [Aug 2020 – Jun 2023]
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